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    Ultra high numerical aperture optical fiber
    71.
    发明专利
    Ultra high numerical aperture optical fiber 审中-公开
    超高数值光纤光纤

    公开(公告)号：JP2014032421A

    公开(公告)日：2014-02-20

    申请号：JP2013216083

    申请日：2013-10-17

    Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

    Inventor： DONG LIANG ,  XIAN PENG ,  THOMAS BRIAN K

    IPC: G02B6/032

    CPC classification number: G02B6/02 ,  C03B37/01211 ,  C03B37/0124 ,  C03B37/01254 ,  C03B37/0126 ,  C03B37/018 ,  C03B2203/14 ,  C03B2203/30 ,  G02B6/02261 ,  G02B6/02333 ,  G02B6/02366 ,  G02B6/03644

    Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber that can provide a desired dispersion and that can also provide a suitable dispersion slope at a small optical loss.SOLUTION: Various embodiments described include optical fiber designs and fabrication processes for ultra high numerical aperture optical fibers (UHNAF) having a numerical aperture (NA) of about 1. Various embodiments of UHNAF may have an NA greater than about 0.7, greater than about 0.8, greater than about 0.9, or greater than about 0.95. Embodiments of UHNAF may have a small core diameter and may have low transmission loss. Embodiments of UHNAF having a sufficiently small core diameter provide single mode operation. Some embodiments have a low V number, for example, less than 2.4 and large dispersion. Some embodiments of UHNAF have extremely large negative dispersion, for example, less than about -300 ps/nm/km in some embodiments. Systems and apparatus using UHNAF are also disclosed.

    Abstract translation: 要解决的问题：提供可以提供期望色散并且还可以以小的光损耗提供合适的色散斜率的光纤。解决方案：所描述的各种实施例包括用于超高数值孔径光纤的光纤设计和制造工艺 （UHNAF）的数值孔径（NA）为约1. UHNAF的各种实施方案可以具有大于约0.7，大于约0.8，大于约0.9或大于约0.95的NA。 UHNAF的实施例可以具有小的芯直径并且可能具有低的传输损耗。 具有足够小的芯直径的UHNAF的实施例提供单模操作。 一些实施例具有低V数，例如小于2.4和大分散。 UHNAF的一些实施方案在一些实施方案中具有非常大的负色散，例如小于约-300ps / nm / km。 还公开了使用UHNAF的系统和装置。

    Modular, high-energy, widely wavelength tunable and ultrafast fiber light source
    72.
    发明专利
    Modular, high-energy, widely wavelength tunable and ultrafast fiber light source 审中-公开
    模块化，高能量，宽带波长和超光纤光源

    公开(公告)号：JP2013239738A

    公开(公告)日：2013-11-28

    申请号：JP2013156607

    申请日：2013-07-29

    Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

    Inventor： FERMANN MARTIN E ,  GALVANAUSKAS ALMANTAS ,  HARTER DONALD J

    IPC: G02B6/02 ,  H01S3/10 ,  G02F1/35 ,  G02F1/365 ,  G02F1/37 ,  H01S3/00 ,  H01S3/06 ,  H01S3/067 ,  H01S3/094 ,  H01S3/098 ,  H01S3/109 ,  H01S3/16 ,  H01S3/23 ,  H01S3/30

    CPC classification number: H01S3/1115 ,  H01S3/0057 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094019 ,  H01S3/094042 ,  H01S3/109 ,  H01S3/1112 ,  H01S3/1616 ,  H01S3/1618 ,  H01S3/302

    Abstract: PROBLEM TO BE SOLVED: To provide a modular, compact and widely wavelength tunable laser system of efficiently generating high-peak ultrashort pulses.SOLUTION: System compactness is ensured by employing efficient fiber amplifiers, directly or indirectly pumped by diode lasers. Peak power handling capability of the fiber amplifiers is expanded by using optimized pulse shapes, as well as dispersively broadened pulses. Dispersive broadening is introduced by dispersive pulse stretching in the presence of self-phase modulation and gain, resulting in formation of high-power parabolic pulses. After amplification, the dispersively stretched pulses are re-compressed nearly to their bandwidth limit by implementing another set of dispersive delay lines. To ensure a wide wavelength tunability of the whole system, Raman-shifting of the compact light sources of ultrashort pulses is implemented in conjunction with frequency conversion in nonlinear optical crystals. Further, positive dispersion optical amplifiers and Raman amplifier fibers are utilized.

    Abstract translation: 要解决的问题：提供有效产生高峰超短脉冲的模块化，紧凑且广泛的波长可调谐激光系统。解决方案：通过采用由二极管激光器直接或间接泵浦的高效光纤放大器来确保系统紧凑性。 通过使用优化的脉冲形状以及分散加宽的脉冲来扩展光纤放大器的峰值功率处理能力。 在存在自相位调制和增益的情况下通过色散脉冲拉伸引入分散加宽，从而形成大功率抛物线脉冲。 放大后，通过实施另一组分散延迟线，将分散拉伸的脉冲重新压缩到几乎达到其带宽限制。 为了确保整个系统的宽波长可调性，超短脉冲的紧凑光源的拉曼移位结合非线性光学晶体中的频率转换来实现。 此外，利用正色散光放大器和拉曼放大器光纤。

    In-line, high energy fiber chirped pulse amplification system
    74.
    发明专利
    In-line, high energy fiber chirped pulse amplification system 审中-公开
    在线，高能量纤维激光脉冲放大系统

    公开(公告)号：JP2012209597A

    公开(公告)日：2012-10-25

    申请号：JP2012162766

    申请日：2012-07-23

    Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

    Inventor： FERMANN MARTIN E ,  IMESHEV GENNADY ,  HARTL INGMAR ,  HARTER DONALD J DR

    IPC: H01S3/067 ,  G02B6/26 ,  G02F1/01 ,  H01S20060101 ,  H01S3/00 ,  H01S3/10 ,  H01S3/23

    CPC classification number: H01S3/06754 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/0092 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/094007 ,  H01S3/10015

    Abstract: PROBLEM TO BE SOLVED: To provide a fiber chirped pulse amplification system with high productivity, which has high pulse stretching ratio and compression ratio.SOLUTION: A polarization holding air clad fiber includes: a core region; a material clad region which surrounds a core; an air clad which substantially surrounds the material clad region; and a layer which surrounds the air clad. The polarization holding air clad fiber is provided in which the fiber polarization holding operation is attained by forming stress induced birefringence in an air clad fiber and assembling a stress formation region completely disposed inside the material clad region and completely surrounded by the material clad region.

    Abstract translation: 要解决的问题：提供具有高脉冲拉伸比和压缩比的高生产率的光纤啁啾脉冲放大系统。 解决方案：偏振保持空气包层光纤包括：芯区; 围绕芯的材料包覆区域; 基本上围绕材料包层区域的空气包层; 以及围绕空气包层的层。 提供了极化保持空气包层光纤，其中通过在空气包层光纤中形成应力引起的双折射并组装完全设置在材料包覆区域内并被材料包覆区域完全包围的应力形成区域来实现光纤偏振保持操作。 版权所有（C）2013，JPO＆INPIT

    High power fiber chirped pulse amplification system utilizing telecom-type components
    77.
    发明专利
    High power fiber chirped pulse amplification system utilizing telecom-type components 有权
    高功率光纤激光放大系统利用电信类型组件

    公开(公告)号：JP2011133902A

    公开(公告)日：2011-07-07

    申请号：JP2011030280

    申请日：2011-02-15

    Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

    Inventor： GU XINHUA ,  UEHARA YUZURU ,  HARTER DONALD J DR

    IPC: G02F1/365 ,  G02F1/03 ,  H01S20060101 ,  H01S3/00 ,  H01S3/06 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/098 ,  H01S3/16 ,  H01S3/23 ,  H04B10/04 ,  H04B10/06 ,  H04B10/142 ,  H04B10/152 ,  H04B10/16 ,  H04B10/17 ,  H04J14/00 ,  H04J14/02

    CPC classification number: H01S3/2333 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/0941 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/2316

    Abstract: PROBLEM TO BE SOLVED: To provide a chirped pulse amplifier (CPA) in which the problems and limits of conventional technology are solved. SOLUTION: The CPA system is equipped with: a mode-locked laser; a polarization holding beam router that is coupled with an output-terminal of the mode-locked laser and that has a first and second output terminals; a polarization holding dispersion compensation fiber that is used for stretching pulse and that is coupled with the first output-terminal of the polarization holding beam router; a first amplifier that is coupled with the polarization holding dispersion compensation fiber; a first pulse selector that is coupled with the first amplifier; a faraday rotator mirror that is coupled with the first pulse selector; and a second amplifier that is coupled with the second output terminal of the polarization holding beam router via a beamsplitter. Input pulse that is inputted into the polarization holding beam router by the mode-locked laser is reflected by the faraday rotator mirror, is returned to the polarization holding beam router, is outputted from the polarization holding beam router and entered into the second amplifier. The first pulse selector is equipped with an integrated modulator with an optical waveguide. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种啁啾脉冲放大器（CPA），其中解决了常规技术的问题和限制。 解决方案：CPA系统配有：锁模激光器; 偏振保持光束路由器，其与所述锁模激光器的输出端耦合，并具有第一和第二输出端; 用于拉伸脉冲并与偏振保持光束路由器的第一输出端耦合的偏振保持色散补偿光纤; 与偏振保持色散补偿光纤耦合的第一放大器; 与第一放大器耦合的第一脉冲选择器; 与第一脉冲选择器耦合的法拉第旋转镜; 以及经由分束器与偏振保持光束路由器的第二输出端耦合的第二放大器。 通过锁模激光器输入到偏振保持光束路由器的输入脉冲由法拉第旋转镜反射，返回到偏振保持光路由器，从偏振保持光束路由器输出并进入第二放大器。 第一个脉冲选择器配有带有光波导的集成调制器。 版权所有（C）2011，JPO＆INPIT

    Beam scanning imaging apparatus
    78.
    发明专利
    Beam scanning imaging apparatus 有权
    光束扫描成像装置

    公开(公告)号：JP2009008658A

    公开(公告)日：2009-01-15

    申请号：JP2008103800

    申请日：2008-04-11

    Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

    Inventor： XU JINGZHOU ,  CHO GYU CHEON

    IPC: G01N21/35

    CPC classification number: G01B15/04 ,  G01B11/24 ,  G01N21/3581 ,  G01N22/00

    Abstract: PROBLEM TO BE SOLVED: To provide focusing optical system combined with steering optical system, and an imaging apparatus using the light collecting opticcal system for efficient and speedy imaging of a target using an extended terahertz electromagnetic wave range challenged by weak electromagnetic wave sources and low sensitivity of detection, and also to provide an efficient detecting method for electromagnetic wave in combination with a speedy imaging speed. SOLUTION: A rastering imaging apparatus is demonstrated without moving the target or the entire imaging system by properly locating an optical system to utilize angular conversion of beams to a lateral scan. A mirror-lens set is used to steer the terahertz (THz) beam along and (or) to collect the THz beam from each point of the target. The target is imaged with a much higher speed than when moving the target or the entire imaging system. A THz wave image can be taken in video frequency for practical usage of each apparatus in varieties of application fields where it has not been considered to be feasible. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：提供与转向光学系统相结合的聚焦光学系统，以及使用光收集光学系统的成像装置，用于使用由弱电磁波源激发的扩展的太赫兹电磁波范围来对目标进行有效和快速的成像 检测灵敏度低，并且提供了与快速成像速度相结合的电磁波的有效检测方法。 解决方案：通过适当地定位光学系统以利用横向扫描的光束角度转换，可以实现无需移动目标物体或整个成像系统的成像装置。 使用镜面组来转向太赫兹（THz）光束并且（或）以从目标的每个点收集太赫兹光束。 目标以比移动目标或整个成像系统时高得多的速度成像。 可以在视频中拍摄太赫兹波图像，以便在不被认为是可行的各种应用领域中实际使用每种装置。 版权所有（C）2009，JPO＆INPIT

    Ultra high numerical aperture optical fiber
    79.
    发明专利
    Ultra high numerical aperture optical fiber 有权
    超高数值光纤光纤

    公开(公告)号：JP2008242459A

    公开(公告)日：2008-10-09

    申请号：JP2008077176

    申请日：2008-03-25

    Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

    Inventor： DONG LIANG ,  XIAN PENG ,  THOMAS BRIAN K

    IPC: G02B6/032 ,  G02B6/024

    CPC classification number: G02B6/02 ,  C03B37/01211 ,  C03B37/0124 ,  C03B37/01254 ,  C03B37/0126 ,  C03B37/018 ,  C03B2203/14 ,  C03B2203/30 ,  G02B6/02261 ,  G02B6/02333 ,  G02B6/02366 ,  G02B6/03644

    Abstract: PROBLEM TO BE SOLVED: To provide optical fibers which can provide a desired dispersion and can also provide a suitable dispersion slope with a small optical loss. SOLUTION: Various embodiments described include optical fiber designs and fabrication processes for ultra high numerical aperture optical fibers (UHNAF) having a numerical aperture (NA) of about 1. Various embodiments of UHNAF may have an NA greater than about 0.7, greater than about 0.8, greater than about 0.9, or greater than about 0.95. Embodiments of UHNAF may have a small core diameter and may have low transmission loss. Embodiments of UHNAF having a sufficiently small core diameter provide single mode operation. Some embodiments have a low V number, for example, less than 2.4 and large dispersion. Some embodiments of UHNAF have extremely large negative dispersion, for example, less than about -300 ps/nm/km in some embodiments. Systems and apparatus using UHNAF are also disclosed. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：提供可以提供期望色散并且还可以提供具有小光损耗的合适的色散斜率的光纤。 所描述的各种实施例包括具有数值孔径（NA）约为1的超高数值孔径光纤（UHNAF）的光纤设计和制造工艺。UHNAF的各种实施例可以具有大于约0.7的NA，更大的NA 大于约0.8，大于约0.9，或大于约0.95。 UHNAF的实施例可以具有小的芯直径并且可能具有低的传输损耗。 具有足够小的芯直径的UHNAF的实施例提供单模操作。 一些实施例具有低V数，例如小于2.4和大分散。 UHNAF的一些实施方案在一些实施方案中具有非常大的负色散，例如小于约-300ps / nm / km。 还公开了使用UHNAF的系统和装置。 版权所有（C）2009，JPO＆INPIT

    Optical switch
    80.
    发明专利
    Optical switch 审中-公开
    光开关

    公开(公告)号：JP2008217034A

    公开(公告)日：2008-09-18

    申请号：JP2008113216

    申请日：2008-04-23

    Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

    Inventor： GALVANAUSKAS ALMANTAS DR ,  WONG KA K DR ,  HARTER DONALD J DR

    IPC: G02F1/39 ,  H01S3/098 ,  G01B9/02 ,  G02F1/313 ,  G02F1/335 ,  H01S3/06 ,  H01S3/101 ,  H04B10/02 ,  H04B10/28

    CPC classification number: G02F1/3137 ,  G01B9/02007 ,  G01B9/02014 ,  G01B9/02091 ,  G02F1/3132 ,  G02F1/335 ,  G02F1/395 ,  G02F2201/124 ,  H01S3/0057

    Abstract: PROBLEM TO BE SOLVED: To provide an optical switch for generating ultrashort optical pulses of variable or adjustable wavelengths from a single light source for outputting ultrashort optical pulses of a fixed wavelength. SOLUTION: An OSSM 24 directly sends ultrashort pulses of 1.55 μm or the like to any one or some of WCCs from a UPL 10. Control of ultrashort pulses from an input port of the OSSM 24 to an optional WCC is performed by using either one of an electro-optical method and an acoustic-optical method. Fig.12 shows the use of 1×3 optical directivity coupler 60 for distributing input radiation light to any or all of output ports. A pulse of 1.55 μm wavelength is sent to an optical waveguide formed by TI, PE or TIPE on a ferroelectric substrate such as lithium niobate or lithium tantalate. All waveguides have cross sections of the same width designed so as to perform single mode propagation at a light source wavelength. A branching condition is determined by applying voltage V1 or V2 to the 1×3 optical directivity coupler 60. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种光学开关，用于从单个光源产生可变或可调波长的超短光脉冲，用于输出固定波长的超短光脉冲。 解决方案：OSSM 24直接从UPL 10向任何一个或一些WCC发送1.55μm等的超短脉冲。从OSSM 24的输入端口到可选WCC的超短脉冲控制通过使用 电光法和声光法之一。 图12示出了使用1×3光学方向性耦合器60将输入辐射光分配到任何或全部输出端口。 将波长为1.55μm的脉冲发送到由诸如铌酸锂或钽酸锂的铁电衬底上由TI，PE或TIPE形成的光波导。 所有波导具有相同宽度的横截面，设计成在光源波长处执行单模传播。 通过将电压V1或V2施加到1×3光学方向性耦合器60来确定分支条件。版权所有：（C）2008，JPO＆INPIT

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